Implant having a photocatalytic unit

Abstract

An implant comprises a photocatalytic layer on at least one surface. In some embodiments, the photocatalytic layer is a semiconductor oxide that is doped. According to some embodiments, the implant comprises a wave guide. According to some embodiments the implant comprises a light port. According to some embodiments, the implant comprises a reflective material on a surface of the waveguide. According to some embodiments the implant comprises a composite material comprising a first material that has a transmissivity when exposed to a predetermined wavelength of light and a second material that has photocatalytic activity when exposed to the predetermined wavelength of light. According to some embodiments the implant comprises a light source adapted to irradiate the photocatalytic surface.

1. An infusion set comprising: a needle housing having a proximal port, a distal port and a base surface; a mounting pad coupled to the base surface of the needle housing and having a transverse hole; and a transcutaneous cannula having a proximal end connected to the distal port of the needle housing and a distal end that is adapted to be fed through the transverse hole; wherein the transcutaneous cannula comprises: a tube having an indwelling portion, an outer wall and an inner wall, and an outer photocatalytic layer attached to the outer wall of the tube,
 wherein the photocatalytic layer attached to the indwelling portion of the tube comprises a semiconductor oxide, wherein the semiconductor oxide comprises titania, wherein at least the outer surface of the titania is doped, and wherein the dopant comprises nitrogen. 
 
   
   
     2. The infusion set of  claim 1 , further comprising an inner photocatalytic layer attached to the inner wall of the tube. 
   
   
     3. The infusion set of  claim 1 , wherein the tube comprises silicone.